| Subject | English | German |
| astr. | secondary component | Nebenkomponente |
| hi.energ. | secondary component | Sekundärkomponente (of cosmic rays, der kosmischen Strahlung) |
| phys. | secondary component | Sekundärkomponente (of cosmic radiation) |
| phys. | secondary component | Begleiter (in the binary star system) |
| astr. | secondary component | Begleiter |
| astr. | threshold curve of the secondary component | Schwellenkurve der Sekundärkomponente |